The weight of the car is obviously in four components - but how much weight is on each of its four wheels? If you've got an adjustable system where you can adjust the ride height by screwing the spring platforms up and down, you need to get the left/right balance correct. You can achieve a certain ride height, but the balance of the car on the left or right sides may be out. To check this you need a corner weight gauge, or a similar means of checking how much weight is on your front left and front right wheels. To increase weight on the front left, for example, you screw up the rear right, to increasae the load on the front left.
If it's a way out left/right, among other things you'll find your braking is greater on one side compared to the other.